CVE-2026-68578

ArcadeDB versions before 26.7.3 fail to bind the authenticated principal in the MCP HTTP transport, causing all engine permission checks to silently pass as no-ops. Non-root MCP-allowed users can perform arbitrary database writes, DDL, schema mutations, and execute arbitrary JavaScript code via the query tool.

CVSS 4.0

7.7CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 29% of CVEs (scores of 2026-10-25)

CWE

CWE-306

Published

2026-08-02

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

References

• https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-6x73-v3rc-f57c
• https://www.vulncheck.com/advisories/arcadedb-authentication-bypass-via-mcp-transport
• https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-6x73-v3rc-f57c

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